Today we made our own Morse Code machine. The materials we used were:
- Press switch
- LED light
- Buzzer
- Most important thing - the battery
- A piece of cardboard
- Wires
- Electrical tape
- Our hands
First we talked about two different ways to make a circuit:
Series - In a series circuit the current has one path that goes through the light and the buzzer one after the other.
Parallel - In a parallel circuit, the current has separate paths, one with the light and one with the buzzer.
Then we took our materials and made a circuit. First we tried just the light, and when we pressed the switch, the light was very bright:
Then made a circuit with just the buzzer, and the buzzer was very loud.
Then we made a circuit with the light and buzzer in series. When we pressed the switch, the light was very dim and the buzzer had no sound:
Then we made a circuit with the light and buzzer in parallel. When we pressed the switch, the light was very bright and the buzzer was very loud:
For our Morse Code machine, the parallel circuit worked much better. We can use the machine to send Morse Code messages.
If you want, you can shine the light on your face when you're taking a picture. It makes your face prettier.
And, um...
.. / -.. --- -. - / -.- -. --- .--
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| Adam says: The light hurts my eyes and the buzzer hurts my ears :(( |





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